<xs:element name="PrimaryEntity" type="AlignmentFeatureType"><xs:annotation><xs:documentation>The PrimaryEntity element is the feature or datum for the primary alignment operation. This feature or datum must have an axis or normal vector.</xs:documentation></xs:annotation></xs:element>
<xs:element name="PrimaryAxis" type="UnitVectorType"><xs:annotation><xs:documentation>The PrimaryAxis element is the direction in which the primary axis points in the current coordinate system.</xs:documentation></xs:annotation></xs:element>
The PrimaryAlignmentOperationType defines information particular to a primary alignment operation. In a primary alignment operation the coordinate system is aligned so that the measured feature axis or normal vector points exactly in the specified primary direction.
<xs:complexType name="PrimaryAlignmentOperationType"><xs:annotation><xs:documentation>The PrimaryAlignmentOperationType defines information particular to a primary alignment operation. In a primary alignment operation the coordinate system is aligned so that the measured feature axis or normal vector points exactly in the specified primary direction.</xs:documentation></xs:annotation><xs:complexContent><xs:extension base="AlignmentOperationBaseType"><xs:sequence><xs:element name="PrimaryEntity" type="AlignmentFeatureType"><xs:annotation><xs:documentation>The PrimaryEntity element is the feature or datum for the primary alignment operation. This feature or datum must have an axis or normal vector.</xs:documentation></xs:annotation></xs:element><xs:element name="PrimaryAxis" type="UnitVectorType"><xs:annotation><xs:documentation>The PrimaryAxis element is the direction in which the primary axis points in the current coordinate system.</xs:documentation></xs:annotation></xs:element></xs:sequence></xs:extension></xs:complexContent></xs:complexType>